Chemistry Final Exam Review Flashcards 2025

Front

a substance that is the building block of all matter (made of one kind of atom).

Back

element

Front

Matter made of two or more elements (chemically bonded/cannot be separated by physical means)

Back

compound

Front

What is the atomic mass of Neon?

Back

20.18

Front

How many protons are in Beryllium?

Back

4

Front

How many neutrons are in a Gold atom?

Back

118

Front

What is at the center of every atom?

Back

A nucleus

Front

Which two particles make up the nucleus of an atom?

Back

Protons and Neutrons

Front

What is the role of an electron in an atom?

Back

Electrons circle the nucleus and have a negative charge.

Front

In an atom, what is the number of protons equal to?

Back

The number of electrons.

Front

What is a compound?

Back

A molecule that is formed from two or more different types of atoms.